XBR-49/55/65/75X900E
TROUBLE SHOOTING
FLOW
4-2. NO PICTURE (VIDEO 1/VIDEO 2/COMPONENT)
** OK Condition : No part short-circuited
NG Condition : Part short-circuited
* OK Condition : No solder splash can be seen
NG Condition : Solder splash can be seen
VIDEO 1
37
Video 1
No Picture
Check wave between
C2628 and IC1000
** Detailed check all parts
at CVBS3P signal path
[D2609/R2629/R2621/C2612
C2628/R2643/VD207]
Check if input OSD
is GRAY OUT
OK if it is highlighted
* Check J2601
Connection,
VIDEO_DET
At R2631
Muffin [IC1000]
Problem
OK
NG
No Picture
J2601
Connectivity
Problem
** Detailed check all
parts at VIDEO2_DET
signal Path [R2630]
Parts Broken
J2601
Connector
Problem
OK
NG
OK (Vpp: 1 V)
NG (Vpp: 0 V)
OK (Vpp: 3.3 V)
NG (Vpp: 0V)
OK (Vpp: 3.3V)
NG (Vpp: 0V)